How do I prevent ServiceStack deserializing empty request parameter values as null?

Question

I have a very simple ServiceStack service which I am invoking it via JSONServiceClient and c# typed API.

However, when I have empty arguments in Request params, ServiceStack is deserializing this into null values. I have looked and it seems like in JSV it is by design but JSON should retain non null values as they are. I have now also set following two settings in Global.asax.cs but with no improvement:

JsConfig.IncludeNullValues = true;
JsConfig.ThrowOnDeserializationError = true;

I'm using ServiceStack version 3.9.69 and IIS version 8.0.

Answer 1

Do you need to differentiate between Null and Empty Strings? If not, then treat them as the same thing, you can check for them using string.IsNullOrEmpty(string str)

From a quick Google of the issue, it seems as a known problem, so you are going to need to work around it. Perhaps before serializing the, configure null values to a string "NULL"?